51.The           (疲惫不堪的)climberswererescuedbyhelicopter...

问题详情：

51. The            (疲惫不堪的) climbers were rescued by helicopter.

52. The acceptance of new members is             (严格) controlled.

53. Because of his special experience, he was chosen to be an              (助理) to the president for energy affairs.

54. The symptoms of flu may be unpleasant, but they            (消失) within a few days.

55. An exchange of            (纪念品) is popular now.

56. He was wearing a very            (严肃的) expression and I knew something was wrong.

57. The book gives a short              (描述) of the city.

58. I want to thank everyone who has            (鼓励) and supported me.

59. The story was first written in English and later            (翻译) into Chinese.

60. Christophe Pires was born and brought up in France, but he speaks English            (流利地).

【回答】

51. exhausted   52. strictly      53. assistant      54. disappear    55. souvenirs

56. serious      57. description   58. encouraged    59. translated   60. fluently

知识点：完成句子

题型：单词拼写